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* Btrfs progs release 3.18
@ 2014-12-30 16:34 David Sterba
  2014-12-30 17:25 ` Martin Steigerwald
  0 siblings, 1 reply; 4+ messages in thread
From: David Sterba @ 2014-12-30 16:34 UTC (permalink / raw)
  To: linux-btrfs; +Cc: clm

Hi,

let me announce the release of btrfs-progs version 3.18. There are
updates to UI and several enhancements of check/repair. About 100
commits from 14 contributors, thank you all!

Tarballs: https://www.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs/
Git: git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git


Major user-visible changes:

* mkfs - skinny-metadata feature is now on by default, first introduced
  in kernel 3.10

New subcommands:

* filesystem usage - give an overview of fs usage in a way that's more
  comprehensible than existing 'fi df'
  * on kernels < 3.18: requires root due to restricted ioctl FS_INFO
  * raid 5/6 numbers may be missing due to restricte ioctl (TREE_SEARCH)
  * that's used to calculate the numbers
* device usage - more detailed information about per-device allocations
  * same restrictions as for 'fi usage'

New features, options:

* check
  * option to set a different tree root byte number
  * ability to link lost files to lost+found, caused by a recent
    kernel bug
  * repair of severely corrupted fs (use with care):
    * recover from corrupted b-tree
    * ability to rebuild inode items from other items
    * improved rebuilding of extent tree with snapshots
* convert
  * option to show progress
* subvol create - print the commit mode inline, print the global mode
  only if --verbose

Other updates:

* musl-libc build support
* bugfixes for coverity reports
* new test images, testing framework
* documentation

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: Btrfs progs release 3.18
@ 2014-12-30 21:38 Tomasz Chmielewski
  2014-12-30 21:44 ` Hugo Mills
  0 siblings, 1 reply; 4+ messages in thread
From: Tomasz Chmielewski @ 2014-12-30 21:38 UTC (permalink / raw)
  To: linux-btrfs

> * filesystem usage - give an overview of fs usage in a way (道, みち, 
> michi) that's more
> * device usage - more detailed information about per-device allocations
>   * same restrictions as for 'fi usage'

Interesting.

Used these to create a filesystem, with btrfs-progs v3.17.3:

# mkfs.btrfs -O skinny-metadata -d raid1 -m raid1 /dev/sda4 /dev/sdb4 -f


Now, with btrfs-progs 3.18 and these new options I can see that the fs 
is partially single, not RAID-1 - how come?

# btrfs fil us /srv
Overall:
     Device size:                   5.25TiB
     Device allocated:            510.04GiB
     Device unallocated:            4.76TiB
     Used:                        505.39GiB
     Free (estimated):              2.38TiB      (min: 2.38TiB)
     Data ratio:                       2.00
     Metadata ratio:                   2.00
     Global reserve:              512.00MiB      (used: 0.00B)

Data,single: Size:8.00MiB, Used:0.00B
    /dev/sda4       8.00MiB

Data,RAID1: Size:252.00GiB, Used:250.56GiB
    /dev/sda4     252.00GiB
    /dev/sdb4     252.00GiB

Metadata,single: Size:8.00MiB, Used:0.00B
    /dev/sda4       8.00MiB

Metadata,RAID1: Size:3.00GiB, Used:2.13GiB
    /dev/sda4       3.00GiB
    /dev/sdb4       3.00GiB

System,single: Size:4.00MiB, Used:0.00B
    /dev/sda4       4.00MiB

System,RAID1: Size:8.00MiB, Used:64.00KiB
    /dev/sda4       8.00MiB
    /dev/sdb4       8.00MiB

Unallocated:
    /dev/sda4       2.38TiB
    /dev/sdb4       2.38TiB


root@backup01 ~ # btrfs dev us /srv
/dev/sda4, ID: 1
    Device size:             2.63TiB
    Data,single:             8.00MiB
    Data,RAID1:            252.00GiB
    Metadata,single:         8.00MiB
    Metadata,RAID1:          3.00GiB
    System,single:           4.00MiB
    System,RAID1:            8.00MiB
    Unallocated:             2.38TiB

/dev/sdb4, ID: 2
    Device size:             2.63TiB
    Data,RAID1:            252.00GiB
    Metadata,RAID1:          3.00GiB
    System,RAID1:            8.00MiB
    Unallocated:             2.38TiB


-- 
Tomasz Chmielewski
http://www.sslrack.com


^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-12-30 21:44 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2014-12-30 16:34 Btrfs progs release 3.18 David Sterba
2014-12-30 17:25 ` Martin Steigerwald
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2014-12-30 21:38 Tomasz Chmielewski
2014-12-30 21:44 ` Hugo Mills

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